EP 3496217 B1 20221116 - SPARK PLUG, CONTROL SYSTEM, INTERNAL COMBUSTION ENGINE, AND INTERNAL COMBUSTION ENGINE SYSTEM
Title (en)
SPARK PLUG, CONTROL SYSTEM, INTERNAL COMBUSTION ENGINE, AND INTERNAL COMBUSTION ENGINE SYSTEM
Title (de)
ZÜNDKERZE, STEUERUNGSSYSTEM, VERBRENNUNGSMOTOR UND VERBRENNUNGSMOTORSYSTEM
Title (fr)
BOUGIE D'ALLUMAGE, SYSTÈME DE COMMANDE, MOTEUR À COMBUSTION INTERNE, ET SYSTÈME DE MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
- JP 2016153660 A 20160804
- JP 2017010226 W 20170314
Abstract (en)
[origin: EP3496217A1] An ignition plug includes a tubular insulator having an axial hole extending in the direction of an axial line, a metallic shell disposed around the outer circumference of the insulator, a center electrode disposed in the axial hole of the insulator, and a ground electrode connected to the forward end of the metallic shell and facing the center electrode. The metallic shell has a threaded portion to be engaged with a thread ridge of a mounting hole of an internal combustion engine. The relational expression Ss/(Sa + Sb) ≥ 2.6 is satisfied, where Ss is the surface area of an outer circumferential surface of the metallic shell extending from the rear end of the threaded portion to the forward end of the threaded portion, Sa is the surface area of that portion of the metallic shell which is to be exposed to combustion gas of the internal combustion engine, and Sb is the surface area of that portion of the insulator which is to be exposed to the combustion gas.
IPC 8 full level
H01T 13/20 (2006.01); F01P 3/02 (2006.01); F01P 3/16 (2006.01); F02P 13/00 (2006.01); H01T 13/16 (2006.01)
CPC (source: EP KR US)
F01P 3/02 (2013.01 - EP KR US); F01P 3/16 (2013.01 - EP KR US); F02P 13/00 (2013.01 - EP KR US); H01T 13/16 (2013.01 - EP US); H01T 13/20 (2013.01 - EP KR US); H01T 13/34 (2013.01 - US); H01T 13/36 (2013.01 - US); H01T 13/40 (2013.01 - KR); H01T 21/02 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3496217 A1 20190612; EP 3496217 A4 20200304; EP 3496217 B1 20221116; CN 109565156 A 20190402; CN 109565156 B 20201110; JP 2019091706 A 20190613; JP 6505230 B2 20190424; JP 6559371 B2 20190814; JP WO2018025440 A1 20180802; KR 20190022810 A 20190306; US 10931087 B2 20210223; US 2019165548 A1 20190530; WO 2018025440 A1 20180208
DOCDB simple family (application)
EP 17836547 A 20170314; CN 201780048044 A 20170314; JP 2017010226 W 20170314; JP 2017533047 A 20170314; JP 2019008610 A 20190122; KR 20197002735 A 20170314; US 201716321218 A 20170314